CN217430731U - Preaction device of automatic water-spraying fire-extinguishing system - Google Patents
Preaction device of automatic water-spraying fire-extinguishing system Download PDFInfo
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- CN217430731U CN217430731U CN202221147502.3U CN202221147502U CN217430731U CN 217430731 U CN217430731 U CN 217430731U CN 202221147502 U CN202221147502 U CN 202221147502U CN 217430731 U CN217430731 U CN 217430731U
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Abstract
The utility model relates to a preaction device of an automatic water spraying fire extinguishing system, which is arranged between a spraying system and a water supply system, the preaction device comprises a diaphragm valve, a diaphragm control device, a hydraulic alarm device and a diaphragm cavity compensating valve, a main water supply side channel communicated with the water supply system, a system side channel communicated with the spraying system and a diaphragm cavity are arranged in the diaphragm valve, the diaphragm control device is communicated with the diaphragm cavity, the diaphragm cavity compensating valve comprises a compensating valve body, a compensating valve core, a compensating valve diaphragm and a valve core cleaning device, a water supply side interface channel, a diaphragm cavity interface channel and an alarm interface channel are formed by the separation of the compensating valve core and the compensating valve diaphragm in the compensating valve body, a compensating channel respectively communicated with the water supply side interface channel and the diaphragm cavity interface channel is arranged in the compensating valve core, the water supply side interface channel is connected with the main water supply side channel, the diaphragm cavity interface channel is connected with the diaphragm cavity, the alarm interface channel is communicated with the hydraulic alarm device, and the valve core cleaning device moves along the compensation channel.
Description
Technical Field
The utility model relates to a technical field that puts out a fire especially relates to an automatic sprinkler system's preaction device.
Background
The preaction device can play a role in high-efficiency protection for the protection area by effectively combining with an automatic fire alarm control system, has the advantages of preventing freezing and preventing mistaken spraying compared with a wet system, has the advantages of quick response and the like compared with a dry system, and is widely applied to places such as a cold storage, a computer room, an electronic factory, a file room and the like which are easy to freeze and are not allowed to mistakenly spray. However, because the pipe network needs to be filled with low-pressure gas during the operation of the pre-action device to monitor the sealing performance of the pipe network and whether the false operation of the spray head exists, most of the pre-action devices in the market at present need to overlap a one-way valve on the valve group to prevent the gas from leaking from the normally open alarm port of the lower valve group during the inflation, but the method has the defects of higher cost, complex structure, inconvenient production process and user installation and the like.
SUMMERY OF THE UTILITY MODEL
In order to overcome the technical defects existing in the prior art, the utility model provides an automatic sprinkler system's preaction device, the preaction stable performance is reliable.
The utility model discloses a technical solution be:
the preaction device comprises a diaphragm valve, a diaphragm control device, a hydraulic alarm device and a diaphragm cavity compensating valve, wherein a main water supply side channel communicated with a water supply system, a system side channel communicated with a spraying system and a diaphragm cavity are arranged in the diaphragm valve, the diaphragm control device is communicated with the diaphragm cavity, the diaphragm control device controls the communication and the closure of the main water supply side channel and the system side channel by changing the position of the diaphragm cavity through the change of water pressure, the diaphragm cavity compensating valve comprises a compensating valve body, a compensating valve core, a compensating valve diaphragm and a valve core cleaning device, a water supply side interface channel, a diaphragm cavity interface channel and an alarm interface channel are formed by the compensating valve core and the compensating valve diaphragm in the compensating valve body in a separating way, the compensating channel respectively communicated with the water supply side interface channel and the diaphragm cavity interface channel is arranged in the compensating valve core, and the water supply side interface channel is connected with the main water supply side channel, the diaphragm cavity interface channel is connected with the diaphragm cavity, the alarm interface channel is communicated with the hydraulic alarm device, the compensating valve core slides along the axis direction of the water supply side interface channel to further communicate or separate the upper side of the water supply side interface channel and the alarm interface channel, the valve core cleaning device is installed on the compensating valve core, the valve core cleaning device moves along the compensating channel to the direction of the water supply side interface channel when the pressure of the water supply side interface channel is smaller than that of the diaphragm cavity interface channel, the valve core cleaning device buckles the side wall of the water supply side interface channel, and the valve core cleaning device is separated from the side wall of the water supply side interface channel when the pressure of the water supply side interface channel is larger than that of the diaphragm cavity interface channel.
Preferably, the diaphragm cavity compensating valve further comprises a compensation control spring, the compensation control spring is installed in the compensation valve body, two ends of the compensation control spring respectively support against a diaphragm of the compensation valve and the inner side wall of the compensation valve body, and the action direction of the compensation control spring enables the compensation valve core to separate the upper side of the water supply side interface channel from the alarm interface channel.
Preferably, this fire extinguishing systems still includes smoke alarm and controller, diaphragm control device is including preaction control solenoid valve, preaction manual starting valve, smoke alarm and preaction control solenoid valve electric connection controller respectively, preaction control solenoid valve and preaction manual starting valve communicate with the diaphragm chamber respectively.
Preferably, this fire extinguishing systems still includes the inflation system, alarm interface passageway still communicates there is pressure switch, the inflation system is including the air pump and the discharge valve of intercommunication spraying system, discharge valve and the equal electric connection controller of pressure switch.
Preferably, the spraying system comprises a plurality of closed nozzles.
Preferably, the fire extinguishing system further includes a system-side drain valve installed on the main water supply-side passage.
Preferably, the fire extinguishing system further comprises a test valve, and two ends of the test valve are respectively communicated with the main water supply side channel and the hydraulic alarm device.
Preferably, the hydraulic alarm device is a hydraulic alarm bell.
Preferably, the diaphragm valve is composed of a main valve body forming the main water supply side passage and the system side passage, a diaphragm pad mounted on the main valve body, a diaphragm chamber formed between the main valve cover and the main valve body, a diaphragm pad mounted in the diaphragm chamber, and a diaphragm spring mounted between the main valve cover and the diaphragm pad, the diaphragm spring acting in a direction of the main water supply side passage and the system side passage.
The utility model has the advantages that:
the preaction device comprises a diaphragm valve, a diaphragm control device, a hydraulic alarm device and a diaphragm cavity compensating valve, wherein a main water supply side channel communicated with a water supply system, a system side channel communicated with a spraying system and a diaphragm cavity are arranged in the diaphragm valve, the diaphragm control device is communicated with the diaphragm cavity, and the diaphragm control device changes the position of the diaphragm cavity through water pressure change to control the communication and the closing of the main water supply side channel and the system side channel.
The diaphragm cavity compensating valve comprises a compensating valve body and a compensating valve core, the compensating valve comprises a compensating valve diaphragm and a valve core cleaning device, a compensating valve core and a compensating valve diaphragm are separated in a compensating valve body to form a water supply side interface channel, a diaphragm cavity interface channel and an alarm interface channel, a compensating channel communicated with the water supply side interface channel and the diaphragm cavity interface channel respectively is arranged in the compensating valve core, a main water supply side channel slowly injects water into the diaphragm cavity interface channel through the compensating channel to ensure the pressure in a diaphragm cavity, the main water supply side channel and a system side channel are prevented from being accidentally communicated due to leakage of water in the diaphragm cavity, the water supply side interface channel is connected with the main water supply side channel, the diaphragm cavity interface channel is connected with a diaphragm cavity, the alarm interface channel is communicated with a hydraulic alarm device, and the compensating valve core slides along the axis direction of the water supply side interface channel to further communicate or separate the upper side of the water supply side interface channel and the alarm interface channel.
Specifically, the method comprises the following steps:
when no fire signal exists, the diaphragm control device always keeps the pressure of the diaphragm chamber, the main water supply side channel and the system side channel are closed at the moment, the main water supply side channel slowly injects water to the diaphragm chamber interface channel through the compensation channel, the pressure in the diaphragm chamber is ensured, and the main water supply side channel and the system side channel are prevented from being accidentally communicated due to leakage of water in the diaphragm chamber;
when a fire signal occurs, the diaphragm control device quickly empties water in the diaphragm chamber, so that a main water supply side channel and a system side channel are quickly opened, and because the water pressure of the compensating valve core close to the water supply side interface channel is higher than the pressure of the alarm interface channel, the compensating valve core is forced to rise under the extrusion of pressure water in the water supply side interface channel, so that the water in the water supply side interface channel is led to the alarm interface channel and the alarm device to alarm.
The valve core cleaning device is arranged on the compensation valve core, the valve core cleaning device moves along the compensation channel to the water supply side interface channel when the pressure of the water supply side interface channel is smaller than that of the diaphragm cavity interface channel, and the valve core cleaning device buckles the side wall of the water supply side interface channel to prevent the compensating valve core and the water supply side interface channel from insufficient pressure, causing leakage due to untight sealing and causing false alarm, the valve core cleaning device moves towards the direction of the diaphragm cavity interface channel along the compensating channel when the pressure of the water supply side interface channel is greater than that of the diaphragm cavity interface channel, and the valve core cleaning device is separated from the side wall of the water supply side interface channel, the valve core cleaning device is provided with a reciprocating cleaning compensation channel when the pressure of the water supply side interface channel changes, the accidental communication between the main water supply side channel and the system side channel caused by the reduction of the water pressure in the diaphragm cavity due to the blockage of the compensation channel is prevented, and the pre-acting performance is stable and reliable.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a side view schematic diagram of the present invention.
Figure 3 is a schematic semi-sectional view of a diaphragm valve.
FIG. 4 is a schematic cross-sectional view of a diaphragm chamber compensator valve.
Description of reference numerals:
1. a diaphragm valve; 11. a main water supply side passage; 12. a system side channel; 13. a diaphragm chamber; 14. a main valve body; 15. a membrane pad; 16. a main valve cover; 17. a diaphragm spring;
2. a diaphragm control device; 21. a pre-action control solenoid valve; 22. a pre-action manual actuation valve;
3. a hydraulic alarm device;
4. a diaphragm chamber compensator valve; 41. a compensation valve body; 411. a water supply side interface passage; 412. a diaphragm chamber interface channel; 413. an alarm interface channel; 414. a compensation channel; 42. a compensation valve core; 43. a compensator valve diaphragm; 44. a valve core cleaning device; 441. a diaphragm side air bag of the diaphragm chamber; 442. a water supply side air bag; 443. cleaning the pull rope; 45. a compensation control spring;
5. and a system side drain valve.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
as shown in fig. 1-4, the embodiment provides a pre-acting device of an automatic sprinkler system, which is installed between a sprinkler system and a water supply system, the pre-acting device comprises a diaphragm valve 1, a diaphragm control device 2, a hydraulic alarm device 3 and a diaphragm cavity compensating valve 4, a main water supply side channel 11 communicated with the water supply system, a system side channel 12 communicated with the sprinkler system and a diaphragm cavity 13 are arranged in the diaphragm valve 1, the diaphragm control device 2 is communicated with the diaphragm cavity 13, and the diaphragm control device 2 controls the communication and the closing of the main water supply side channel 11 and the system side channel 12 by changing the position of the diaphragm cavity 13 through water pressure change.
The diaphragm cavity compensating valve 4 comprises a compensating valve body 41, a compensating valve core 42, a compensating valve diaphragm 43 and a valve core cleaning device 44, a water supply side interface channel 411, a diaphragm cavity interface channel 412 and an alarm interface channel 413 are formed in the compensating valve body 41 by separating the compensating valve core 42 and the compensating valve diaphragm 43, a compensating channel 414 communicated with the water supply side interface channel 411 and the diaphragm cavity interface channel 412 is arranged in the compensating valve core 42, a main water supply side channel 11 slowly injects water into the diaphragm cavity interface channel 412 through the compensating channel 414 to ensure the pressure in the diaphragm cavity 13, the main water supply side channel 11 and a system side channel 12 are prevented from being accidentally communicated due to leakage of the water in the diaphragm cavity 13, the water supply side interface channel 411 is connected with the main water supply side channel 11, the diaphragm cavity interface channel 412 is connected with the diaphragm cavity 13, the alarm interface channel 413 is communicated with the hydraulic alarm device 3, the compensating valve core 42 slides along the axial direction of the water supply side interface channel 411 to be communicated or separate the upper side of the water supply side interface channel 411 And alarm interface channel 413.
Specifically, the method comprises the following steps:
when no fire signal exists, the diaphragm control device 2 always keeps the pressure on the diaphragm chamber 13, at the moment, the main water supply side channel 11 and the system side channel 12 are closed, the main water supply side channel 11 slowly injects water into the diaphragm chamber interface channel 412 through the compensation channel 414, the pressure in the diaphragm chamber 13 is ensured, and the main water supply side channel 11 and the system side channel 12 are prevented from being accidentally communicated due to leakage of the water in the diaphragm chamber 13;
when a fire signal occurs, the diaphragm control device 2 quickly empties the water in the diaphragm chamber 13, so that the main water supply side passage 11 and the system side passage 12 are quickly opened, and since the water pressure of the compensating valve core 42 close to the water supply side interface passage 411 is higher than the pressure of the alarm interface passage 413, the compensating valve core 42 is forced to rise under the pressure of the water in the water supply side interface passage 411, so that the water in the water supply side interface passage 411 is led to the alarm interface passage 413 and the alarm device for alarming.
The cartridge cleaning device 44 is mounted on the compensating cartridge 42, the cartridge cleaning device 44 moves along the compensating channel 414 in the direction of the water supply side port channel 411 when the pressure of the water supply side port channel 411 is less than that of the diaphragm chamber port channel 412, and the cartridge cleaning device 44 catches the side wall of the water supply side port channel 411, the cartridge cleaning device 44 moves along the compensating channel 414 in the direction of the diaphragm chamber port channel 412 when the pressure of the water supply side port channel 411 is greater than that of the diaphragm chamber port channel 412, and the cartridge cleaning device 44 is separated from the side wall of the water supply side port channel 411, the cartridge cleaning device 44 has a reciprocating cleaning compensating channel 414 when the pressure of the water supply side port channel 411 varies, and the main water supply side channel 11 and the system side channel 12 are prevented from accidentally communicating due to the reduction of the water pressure in the diaphragm chamber 13 caused by the blockage of the compensating channel 414.
Specifically, the method comprises the following steps: the valve body washing device 44 includes a diaphragm chamber diaphragm side air bag 441, a water supply side air bag 442 and a washing pull-out line 443, the washing pull-out line 443 is positioned in the compensation passage 414, and the water supply side air bag 442 is positioned in the water supply side connection passage 411; the diaphragm chamber diaphragm side air bag 441 is positioned in the diaphragm chamber interface channel 412, when the pressure of the water supply side interface channel 411 is increased, the water supply side air bag 442 is compressed to enable the cleaning pull rope 443 to move upwards, the cleaning pull rope 443 cleans the compensation channel 414, when the pressure of the diaphragm chamber interface channel 412 is increased, the diaphragm chamber diaphragm side air bag 441 is compressed to enable the cleaning pull rope 443 to move downwards, the cleaning pull rope 443 cleans the compensation channel 414 to prevent the main water supply side channel 11 and the system side channel 12 from being accidentally communicated due to the reduction of the water pressure in the diaphragm chamber 13 caused by the blockage of the compensation channel 414, the side wall of the water supply side air bag 442 is provided with a hook which buckles the side wall of the water supply side interface channel 411, when the pressure of the water supply side interface channel 411 is balanced with the pressure of the diaphragm chamber interface channel 412, the water supply side air bag 442 pushes the hook to hook the water supply side interface channel 411 to prevent the extrusion force of the water supply side interface channel 411 from being insufficient, the accidental connection of a poorly sealed alarm interface passage 413 causes a false alarm.
Diaphragm chamber compensating valve 4 still includes compensation control spring 45, compensation control spring 45 installs in compensation valve body 41, compensation control spring 45's both ends withstand compensating valve diaphragm 43 and the 41 inside walls of compensation valve body respectively, compensation control spring 45's effect direction makes compensation valve core 42 separate and supplies water side interface passageway 411 upside and warning interface passageway 413, compensation control spring 45 provides pressure for compensation valve core 42, prevent that the wrong report is alert.
The fire extinguishing system also comprises a smoke alarm and a controller, the diaphragm control device 2 comprises a pre-action control electromagnetic valve 21, a pre-action manual starting valve 22, the smoke alarm and the pre-action control electromagnetic valve 21 are respectively electrically connected with the controller, the pre-action control electromagnetic valve 21 and the pre-action manual starting valve 22 are respectively communicated with the diaphragm chamber 13, the smoke alarm receives smoke signals and transmits the signals to the controller, the controller control electromagnetic valve is opened, and then the pressure of the diaphragm chamber is reduced to enable the main water supply side channel 11 and the system side channel 12 to be communicated for supplying water, if a fire is found manually, the manual pneumatic valve can be opened manually to enable the pressure of the diaphragm chamber to be reduced to enable the main water supply side channel 11 and the system side channel 12 to be communicated for supplying water, meanwhile, because the water pressure of the compensating valve core 42, which is close to the water supply side interface channel 411, is higher than the pressure of the alarm interface channel 413, the compensating spool 42 is forced to rise by the pressure water in the water supply side port passage 411, so that the water in the water supply side port passage 411 is led to the alarm port passage 413 and the alarm device to alarm.
This fire extinguishing systems still includes air inflation system, warning interface passageway 413 still communicates there is pressure switch, air inflation system is including intercommunication spraying system's air pump and discharge valve, the equal electrically connected controller of discharge valve and pressure switch, after alarm device leads to water, pressure switch feels water pressure and gives the controller with signal transmission, the controller opens the bleed valve fast, the gas escape in the bleed valve with spraying system, get into for the pressure level and prepare, the air pump keeps there being pressure gas in spraying system at ordinary times, be convenient for inspect the leak source.
The spraying system comprises a plurality of closed nozzles, the closed nozzles can spray out pressure water in the spraying system to extinguish fire after the closed nozzles are exploded, the fire extinguishing system further comprises a system side drain valve 5, the system side drain valve 5 is installed on a main water supply side channel 11, and the system side drain valve 5 is used for emptying residual water in the spraying system after fire extinguishing is finished.
The fire extinguishing system further comprises a test valve, two ends of the test valve are respectively communicated with the main water supply side channel 11 and the hydraulic alarm device 3, the hydraulic alarm device 3 is a hydraulic alarm bell, and the test valve is used for independently testing whether the hydraulic alarm device 3 is intact or not.
The diaphragm valve 1 is composed of a main valve body 14, a diaphragm pad 15, a main valve cover 16 and a diaphragm spring 17, the main valve body 14 forms a main water supply side passage 11 and a system side passage 12, the main valve cover 16 is mounted on the main valve body 14, a diaphragm chamber 13 is formed between the main valve cover 16 and the main valve body 14, the diaphragm pad 15 is mounted in the diaphragm chamber 13, the diaphragm spring 17 is mounted between the main valve cover 16 and the diaphragm pad 15, the acting direction of the diaphragm spring 17 is directed toward the main water supply side passage 11 and the system side passage 12, the main water supply side passage 11 and the system side passage 12 are closed by pressing the diaphragm pad 15 by the diaphragm spring 17, and the main water supply side passage 11 pushes the diaphragm pad 15 away to communicate the main water supply side passage 11 and the system side passage 12 when the pressure in the diaphragm chamber 13 is reduced.
Having shown and described the fundamental principles and the principal features of the invention and its advantages, it will be understood by those skilled in the art that the present invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (6)
1. A pre-acting device of an automatic water spraying fire extinguishing system is arranged between a spraying system and a water supply system and is characterized by comprising a diaphragm valve, a diaphragm control device, a hydraulic alarm device and a diaphragm cavity compensating valve, wherein a main water supply side channel communicated with the water supply system, a system side channel communicated with the spraying system and a diaphragm cavity are arranged in the diaphragm valve, the diaphragm control device is communicated with the diaphragm cavity, the diaphragm control device changes the position of the diaphragm cavity through water pressure change to control the communication and the closing of the main water supply side channel and the system side channel, the diaphragm cavity compensating valve comprises a compensating valve body, a compensating valve core, a compensating valve diaphragm sheet and a valve core cleaning device, the compensating valve body is separated by the compensating valve core and the compensating valve diaphragm sheet to form a water supply side interface channel, a diaphragm cavity interface channel and an alarm interface channel, and a compensating channel respectively communicated with the water supply side interface channel and the diaphragm cavity interface channel is arranged in the compensating valve core, the water supply side interface channel is connected with the main water supply side channel, the diaphragm cavity interface channel is connected with the diaphragm cavity, the alarm interface channel is communicated with the hydraulic alarm device, the compensating valve core slides along the axial direction of the water supply side interface channel to further communicate or separate the upper side of the water supply side interface channel and the alarm interface channel, the valve core cleaning device is installed on the compensating valve core, the valve core cleaning device moves towards the direction of the water supply side interface channel along the compensating channel when the pressure of the water supply side interface channel is smaller than that of the diaphragm cavity interface channel, the side wall of the water supply side interface channel is buckled by the valve core cleaning device, and the valve core cleaning device is separated from the side wall of the water supply side interface channel when the pressure of the water supply side interface channel is larger than that of the diaphragm cavity interface channel.
2. The preaction unit of an automatic sprinkler system according to claim 1, wherein the diaphragm chamber compensation valve further comprises a compensation control spring, the compensation control spring is installed in the compensation valve body, two ends of the compensation control spring respectively support against the diaphragm of the compensation valve and the inner side wall of the compensation valve body, and the action direction of the compensation control spring enables the compensation valve core to separate the upper side of the water supply side interface channel from the alarm interface channel.
3. The preaction means of an automatic sprinkler system according to claim 1, further comprising a system side drain valve installed on the main water supply side passage.
4. The preaction apparatus for an automatic sprinkler system according to claim 1, further comprising a test valve having both ends connected to the main water supply side passage and the hydraulic alarm device, respectively.
5. The preaction means of an automatic sprinkler system according to claim 1, wherein the hydraulic alarm device is a hydraulic alarm bell.
6. The preaction apparatus for a sprinkler system according to claim 1, wherein the diaphragm valve is comprised of a main valve body forming a main water supply side passage and a system side passage, a main valve cover mounted on the main valve body, the main valve cover and the main valve body forming a diaphragm chamber therebetween, a diaphragm pad mounted in the diaphragm chamber, a diaphragm spring mounted between the main valve cover and the diaphragm pad, the diaphragm spring acting in a direction of the main water supply side passage and the system side passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221147502.3U CN217430731U (en) | 2022-05-13 | 2022-05-13 | Preaction device of automatic water-spraying fire-extinguishing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221147502.3U CN217430731U (en) | 2022-05-13 | 2022-05-13 | Preaction device of automatic water-spraying fire-extinguishing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217430731U true CN217430731U (en) | 2022-09-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221147502.3U Active CN217430731U (en) | 2022-05-13 | 2022-05-13 | Preaction device of automatic water-spraying fire-extinguishing system |
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| Country | Link |
|---|---|
| CN (1) | CN217430731U (en) |
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- 2022-05-13 CN CN202221147502.3U patent/CN217430731U/en active Active
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